Practice Nth Magical Number
Read the task, work through the examples, and check your approach against the constraints. Use the original LeetCode task for coding and submissions.
Problem Statement
A positive integer is magical if it is divisible by either a or b. Given the three integers n, a, and b, return the nth magical number. Since the answer may be very large, return it modulo 10^9 + 7.
Source: Nth Magical Number on LeetCode. Use the original task for its coding environment and submissions.
Examples
# Example 1
Input
n = 1, a = 2, b = 3
Output
2
# Example 2
Input
n = 4, a = 2, b = 3
Output
6
Constraints
1 <= n <= 10^9
2 <= a, b <= 4 * 10^4
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